In other Kate related news, the Duchess is currently rumoured to be pregnant, as royal fans are abuzz that she is expecting her fourth child with husband, Prince William.
According to reports, the royal has been dropping various clues that she is pregnant, including switching up her hairstyle.
In the past, Kate has been known to do this before announcing a pregnancy, having made changes to her hair prior to the announcement of her pregnancies with Prince George and Princess Charlotte.
"Like a lot of women Kate does tend to change her hair when she is pregnant, although not dramatically," Body language expert Judi James told Daily Star Online.
"The new style and colour she emerged with when she took George and Charlotte to school did look like one of her glossiest and most fashionable looks to date.
"But then she did say she’d had it done for the school run, and it could have been aimed at giving her an emotional lift as Charlotte left home for school for the first time.
WATCH: Prince William and Kate Middleton spotted on a budget flight amid Meghan and Harry's private jet outrage